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Finding the Fourth Proportional to 325,699.50, 488,549.46 and 89,024.40

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Solution

The fourth proportional to 325,699.50, 488,549.46 and 89,024.40 is: 133,536.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,699.50 : 488,549.46 = 89,024.40 : x
  2. Step 2: Convert to fraction form
    325,699.50/488,549.46 = 89,024.40/x
  3. Step 3: Cross multiply
    325,699.50x = 488,549.46 × 89,024.40
  4. Step 4: Simplify right side
    325,699.50x = 43,492,822,546.82
  5. Step 5: Solve for x
    x = 43,492,822,546.82/325,699.50
  6. Step 6: Final answer
    x = 133,536.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.